The researchers noted that sudden cardiac arrest kills more than 300,000 people in the us every year and physical activity, particularly when the person is not accustomed to it, is linked to a higher risk of the condition.

If you have a heart condition and are afraid that sex could trigger cardiac arrest, there's a reason to relax. "The risk is very small".

Researchers examined data on 4,557 adults who died from a sudden cardiac arrest, which is essentially a short circuit in the heart's electrical system. However, taking this latest one at face value, the odds of going into cardiac arrest when making love are similar to those...

Those who experienced sexual activity related sudden cardiac arrest tended to be younger, with an average age of 60.3 years, compared to an average age of 65.2 years for those who had a sudden cardiac arrest that wasn't linked to sex.

Despite another partner being present in all sex-linked SCAs, just one-third of those patients received immediate CPR.

Men are more likely than women to have their heart stop as a result of sex.

In addition, African Americans comprised 7.8 percent of the sudden cardiac arrests in the study, but nearly 19 percent of the sexual activity-related cardiac arrests. That's lower than the overall rate of CPR for those who suffer cardiac arrest out of a hospital, which is 46 percent. A 2011 study by researchers at Harvard found that sex is easier than working out on a treadmill - and the heart rates of the men in the study rarely rose above 130 beats a minute.

Scientists stated: "The majority of cases were men with a previous history of cardiovascular disease".

"These findings highlight the importance of continued efforts to educate the public on the importance of bystander CPR for SCA, irrespective of the circumstance", Chugh added.

The authors also noted that less than a third of patients who had a heart attack during or just after sex received CPR, despite being with someone else at the time of the attack.

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